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Earth orbit
Earth orbit is an orbit around the planet Earth. The Moon, Earth's only natural satellite, is in Earth orbit. Artificial satellite are launched into Earth orbit, and spacecraft bound for other locations in the solar system usually begin their missions by first attaining Earth orbit, before altering...
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Filter this CollectionJohn Glenn
John Herschel Glenn Jr. (born July 18, 1921) is a retired United States Marine Corps pilot, a former astronaut and United States senator who was the first American and third person to orbit the Earth. Glenn was a Marine Corps fighter pilot before...